GB369112A - Improvements in or relating to modulating systems for electric oscillations - Google Patents

Improvements in or relating to modulating systems for electric oscillations

Info

Publication number
GB369112A
GB369112A GB19902/31A GB1990231A GB369112A GB 369112 A GB369112 A GB 369112A GB 19902/31 A GB19902/31 A GB 19902/31A GB 1990231 A GB1990231 A GB 1990231A GB 369112 A GB369112 A GB 369112A
Authority
GB
United Kingdom
Prior art keywords
valve
capacity
resistance
plate
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB19902/31A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB369112A publication Critical patent/GB369112A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
GB19902/31A 1930-07-10 1931-07-10 Improvements in or relating to modulating systems for electric oscillations Expired GB369112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US466955A US1917394A (en) 1930-07-10 1930-07-10 Frequency modulation

Publications (1)

Publication Number Publication Date
GB369112A true GB369112A (en) 1932-03-17

Family

ID=23853719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19902/31A Expired GB369112A (en) 1930-07-10 1931-07-10 Improvements in or relating to modulating systems for electric oscillations

Country Status (4)

Country Link
US (1) US1917394A (de)
BE (1) BE381244A (de)
GB (1) GB369112A (de)
NL (1) NL35347C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473556A (en) * 1943-03-15 1949-06-21 Carl A Wiley Device for controlling oscillating circuits
US2590282A (en) * 1947-11-08 1952-03-25 Stromberg Carlson Co Variable impedance device

Also Published As

Publication number Publication date
BE381244A (de)
US1917394A (en) 1933-07-11
NL35347C (de)

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